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Machines, Volume 8, Issue 2

June 2020 - 19 articles

Cover Story: The power density and efficiency of electric machines used for automotive traction continues to improve. The designs used in recent vehicles are converging on interior permanent magnet machine topology, where substantial innovations in rotor and stator design have evolved over the years. There is also an increasing trend toward the reduction of rare-earth permanent magnet content in these machines and this will continue to inspire new topologies of machines. Resurgence of research into traditional topologies such as switched reluctance and synchronous reluctance machines may also be expected. This paper provides an overview of present trends towards high specific power density machines for traction drive systems, with a focus on technology used in recent vehicles and trends that are likely to be pursued in the near future. View this paper
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Articles (19)

  • Article
  • Open Access
4 Citations
4,037 Views
17 Pages

An increasing shortening of product life cycles, as well as the trend towards highly individualized food products, force manufacturers to digitize their own production chains. Especially the collection, monitoring, and evaluation of food data will ha...

  • Article
  • Open Access
36 Citations
5,055 Views
25 Pages

A Self-triggered Position Based Visual Servoing Model Predictive Control Scheme for Underwater Robotic Vehicles

  • Shahab Heshmati-alamdari,
  • Alina Eqtami,
  • George C. Karras,
  • Dimos V. Dimarogonas and
  • Kostas J. Kyriakopoulos

An efficient position based visual sevroing control approach for Autonomous Underwater Vehicles (AUVs) by employing Non-linear Model Predictive Control (N-MPC) is designed and presented in this work. In the proposed scheme, a mechanism is incorporate...

  • Review
  • Open Access
82 Citations
15,365 Views
28 Pages

Condition-Based Maintenance—An Extensive Literature Review

  • Elena Quatrini,
  • Francesco Costantino,
  • Giulio Di Gravio and
  • Riccardo Patriarca

This paper presents an extensive literature review on the field of condition-based maintenance (CBM). The paper encompasses over 4000 contributions, analysed through bibliometric indicators and meta-analysis techniques. The review adopts Factor Analy...

  • Article
  • Open Access
3 Citations
3,148 Views
13 Pages

In this paper, we present a new analytical method to calculate the required amplitudes and phase angles of the injected harmonic currents, to generate a determined torque ripple for synchronous machines with surface-mounted permanent magnets. First,...

  • Article
  • Open Access
6 Citations
3,104 Views
20 Pages

A product is composed of several components, and the number, type, and combination of components plays a crucial role in the process of product design. It is difficult to get an optimized scheme in a short time. In order to improve the efficiency of...

  • Article
  • Open Access
8 Citations
6,184 Views
19 Pages

This paper proposes a reliable and straightforward approach to mobile robots (or moving objects in general) indoor tracking, in order to perform a preliminary study on their dynamics. The main features of this approach are its minimal and low-cost se...

  • Article
  • Open Access
16 Citations
4,649 Views
22 Pages

In large rotor-bearing systems, the rolling element bearings act as a considerable source of subcritical vibration excitation. Simulation of such rotor bearing systems contains major sources of uncertainty contributing to the excitation, namely the r...

  • Article
  • Open Access
61 Citations
7,546 Views
16 Pages

With the advent of agriculture 3.0 and 4.0, in view of efficient and sustainable use of resources, researchers are increasingly focusing on the development of innovative smart farming and precision agriculture technologies by introducing automation a...

  • Article
  • Open Access
20 Citations
5,793 Views
16 Pages

This study investigates the dynamic behavior of a recently developed counterbalance forklift truck. The final objective is creating virtual testing tools based on numerical multibody models to evaluate the dynamic stresses experienced by the forklift...

  • Review
  • Open Access
29 Citations
8,516 Views
29 Pages

Review of Multiaxial Testing for Very High Cycle Fatigue: From ‘Conventional’ to Ultrasonic Machines

  • Pedro Costa,
  • Richard Nwawe,
  • Henrique Soares,
  • Luís Reis,
  • Manuel Freitas,
  • Yong Chen and
  • Diogo Montalvão

Fatigue is one of the main causes for in service failure of mechanical components and structures. With the development of new materials, such as high strength aluminium or titanium alloys with different microstructures from steels, materials no longe...

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Machines - ISSN 2075-1702